Zoology. 935 
The Genera of North American Phalangiines.—In working 
over the rich collections of harvest-men belonging to the Illinois 
State Laboratory of Natural History, in connection with recent 
uropean literature, I find that very few of the species described 
_ by Wood, under the old genus Phalangium, belong to that genus 
_ 4 now restricted by the best European authorities. I have be- 
_ fore me specimens of eight of the species treated by Wood (my 
_ determinations of all but two of them having been verified, 
through the kindness of Mr. Charles W. Woodworth, by com- 
parison with the types in the Museum of Comparative Zoology), 
and I find that P. dorsatum, vittatum, nigropalpi, and verrucosum, 
n all belong to the genus Liobunum of C. Koch, as defined by 
- Simon? I have also provisionally referred P. formosum and 
_ P. calcar to this genus, though, on account of the projecting 
_ Mner angle of the palpal patella in the former and the spur-like 
_ Process on the outer ventro-lateral surface of the femur of the 
“arg in the latter, they do not appear to strictly belong to it. 
Bs 
$ 
Ag 
cmereum falls into the restricted genus Phalangium, and 
wŠ 
` 
x tum goes to Oligolophus. I suspect that P. bicolor and 
a P. ventricosum also belong to Liobunum. 
æ, and, if the specimen be dropped immediately into al- 
other.—Clarence M. Weed, Illinois State Lab. Nat. Hist, 
paign, 18th August, 1887. : 
ZOOLOGY. 
ay 
vo Soc. Lond. 87) on the “ Systema’ 
Position a a 2.1886, pp. 558-662, 1887) on the “ Syste 
“sition and Classification of Sponges” : = fi. 
0, n eleton cal eous.. saeeibe 
e No calcareous skeleton ene 
tf odem consists exclusively of collar-cells........++++ sovcesanees RIE 
erm consists of collar- and pavement-cells... s.es -sreseeesrerserserraeree 
rgans will be pushed out of the genital opening between- 
nt: Essex Inst., vol. vi, pp. 10-40. ? Arach. de France, vol. vi. p. 172- 
rf 
Key. to the Recent Families of Sponges.—The following a 
aah 's taken from Dr. R. von Lendenfeld’s recent paper (Proc. ns 
wh Om 
